The Double Torsion Test Applied to Fine Grained Freshwater Columnar Ice, and Sea Ice jump length was found to be correlated to the drop in stress intensity factor, but not to load rate. The arrest stress intensity factor appears to be the creep free fracture toughness, and was the same for both types of ice.
作者: TIA742 時(shí)間: 2025-3-29 08:38
Ice and Steel - A Comparison of Creep and Failureparable and, in many instances, complementary. Grain size has been shown to play a major role in determining the overall creep response and damage accumulation, and thereby makes the model useful in understanding the response of heat affected zones in weldments in steels.
作者: irradicable 時(shí)間: 2025-3-29 13:39
The Brittle-To-Ductile Transition in Siliconependence of the transition temperature, T., is controlled by dislocation velocity. Etch pit observations show that dislocation generation from the crack tip begins at K just below K., from a small number of sources around the crack tip. The dynamics of plastic relaxation has been simulated on a mod
作者: Outmoded 時(shí)間: 2025-3-29 18:06
Stress Redistribution Effects on Creep Crack Growth(t), to steady state values described by the parameter C* For creep ductile materials, the transitional phase before attainment of the steady state is usually neglected and crack initiation and subsequent creep crack growth rates can be determined from calculations of C*. However, for creep brittle
作者: Accessible 時(shí)間: 2025-3-29 20:56
作者: DEMN 時(shí)間: 2025-3-30 02:49
Modelling of Creep Crack Growthpreserved at a crack tip it is shown that crack growth rate can be correlated by the stress intensity factor K and when a creep stress distribution is attained by the creep fracture parameter C*. However since creep strains of about the elastic strains only are required for stress redistribution, it
作者: 機(jī)構(gòu) 時(shí)間: 2025-3-30 04:51
Modelling Creep-Crack Growth Processes in Ceramic Materialsral, have a fairly complex influence on the stresses and displacements occurring in the undamaged material. However, there are two limiting types of behaviour that result in significant simplifications to the analysis. If the interaction between the damaged and undamaged regions is negligible, then
作者: Statins 時(shí)間: 2025-3-30 09:16
On The Growth of Cracks By Creep in The Presence of Residual Stressese used; a local analysis where the combined mechanical and residual stresses are examined using near crack tip stress fields for transient conditions, and a second approach where the global relaxation of the residual stresses is used to estimate conditions. The creep fracture mechanics parameter C*
作者: 跟隨 時(shí)間: 2025-3-30 15:19
作者: Forage飼料 時(shí)間: 2025-3-30 16:31
Indentation Creep in Zirconia Ceramics Between 290 K and 1073 Kal form, to Knoop indentations in the ranges 290–1073 K and 10–10 000 s. The single crystal data lie consistently above the polycrystalline results. Indentation creep is observed at all temperatures with the rate of creep increasing at higher temperatures. The results are analysed and discussed in t
作者: tooth-decay 時(shí)間: 2025-3-30 20:42
作者: Thyroid-Gland 時(shí)間: 2025-3-31 02:58
Physical Interpretation Of Creep and Strain Recovery of a Glass Ceramic Near Glass Transition Temper stages of crystals nucleation and in isoconfigurational and metastable states. In order to interpret the physical processus resulting in non-elastic deformation, a physical model of deformation based on the concept of “defects” and of correlated atomic movements has been used. From the model, the c
作者: Interregnum 時(shí)間: 2025-3-31 07:36
作者: NOVA 時(shí)間: 2025-3-31 12:19
作者: 寬敞 時(shí)間: 2025-3-31 17:02
作者: Eviction 時(shí)間: 2025-3-31 20:39
作者: 抵消 時(shí)間: 2025-4-1 00:58
作者: 工作 時(shí)間: 2025-4-1 04:59
Continuum Damage Mechanics Applied to Multi-Axial Cyclic Material Behavioureformation and failure for multi-axial behaviour presents many problems. The authors propose here some approaches to these problems. A non-linear kinematic hardening model and a multi-axial damage evolution law is used to model two simple bi-axial strain paths. Problems arising from these simulation
作者: 宮殿般 時(shí)間: 2025-4-1 09:49
Multiaxial Stress Rupture Criteria for Ferritic Steelstiaxial stressing, which is the type of loading that they invariably encounter in service in power and process plant applications. Various criteria have been proposed for predicting failure under multiaxial stress states. In the present investigation the applicability of these criteria to ferritic s
作者: 駕駛 時(shí)間: 2025-4-1 13:48
- to a certain extent - driven this scientific concern of interest. The field has been given a big boost in particular by the process of European integration and the attempt to understand how this deeper integration will work at the regional level. This volume makes a modest attempt to reconsider t
作者: inscribe 時(shí)間: 2025-4-1 16:35
作者: 不自然 時(shí)間: 2025-4-1 21:40
R. A. Ainsworthific concern of interest. The field has been given a big boost in particular by the process of European integration and the attempt to understand how this deeper integration will work at the regional level. This volume makes a modest attempt to reconsider the issue of regional development mainly fro
作者: inculpate 時(shí)間: 2025-4-2 02:01
W. S. Blackburnining key projects for regional development researchAs one of the eighteen field-specific reports comprising the comprehensive scope of the strategic general report of the Chinese Academy of Sciences, this sub-report addresses long-range planning for developing science and technology in the field of
作者: Haphazard 時(shí)間: 2025-4-2 04:20
G. A. Websterciences that is characterized by three distinctive features of comprehensiveness, spatial diversity and time variability.. Due to the extremely complex role of “human” in its affecting factors, driving mechanism and development status, regional development displays an eminent feature of uncertainty.
作者: ureter 時(shí)間: 2025-4-2 10:48
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